Nothing Special   »   [go: up one dir, main page]

SE7709944L - FILTER PROCEDURE - Google Patents

FILTER PROCEDURE

Info

Publication number
SE7709944L
SE7709944L SE7709944A SE7709944A SE7709944L SE 7709944 L SE7709944 L SE 7709944L SE 7709944 A SE7709944 A SE 7709944A SE 7709944 A SE7709944 A SE 7709944A SE 7709944 L SE7709944 L SE 7709944L
Authority
SE
Sweden
Prior art keywords
suction
posn
lowest
shaft
filter
Prior art date
Application number
SE7709944A
Other languages
Swedish (sv)
Inventor
M Toivonen
Original Assignee
Rauma Repola Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rauma Repola Oy filed Critical Rauma Repola Oy
Publication of SE7709944L publication Critical patent/SE7709944L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/463—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/82—Means for pressure distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Filtration Of Liquid (AREA)
  • Magnetic Record Carriers (AREA)
  • Filtering Materials (AREA)
  • Prostheses (AREA)

Abstract

Filter for fibrous material is disc type and has hollow shaft down which passages run. A series of segmental discs are located along the shaft with each segment having a passage which connects with the passage down the shaft. A distributor valve permits alternating press. and suction to be applied to various passages as the shaft rotates. - This distributor valve establishes a suction zone around a certain sector, this being divided into parts. The first serves to draw off the so-called dirty filtrate while the second draws off the clean filtrate. Suction in the clean zone commences somewhere between the lowest posn. of the radius and 60 degrees round from this esp. in a zone 10-50 degrees round from the lowest posn. Suction for the dirty filtrate commences at least 45 degrees before the lowest posn. - Used to filter fibrous slurries esp. wood pulp slurries inppapermaking. The filter operates significantly quicker and more precisely than previous disc filters.
SE7709944A 1976-09-14 1977-09-05 FILTER PROCEDURE SE7709944L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI762626A FI54060C (en) 1976-09-14 1976-09-14 SKIVFILTER

Publications (1)

Publication Number Publication Date
SE7709944L true SE7709944L (en) 1978-03-15

Family

ID=8510263

Family Applications (2)

Application Number Title Priority Date Filing Date
SE7709944A SE7709944L (en) 1976-09-14 1977-09-05 FILTER PROCEDURE
SE8201842A SE431405B (en) 1976-09-14 1982-03-23 disc filters

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE8201842A SE431405B (en) 1976-09-14 1982-03-23 disc filters

Country Status (10)

Country Link
US (1) US4136028A (en)
JP (1) JPS5336078A (en)
AT (1) AT358382B (en)
BR (1) BR7703607A (en)
CA (1) CA1098046A (en)
DE (1) DE2740350C2 (en)
FI (1) FI54060C (en)
FR (1) FR2364054A1 (en)
NO (2) NO144842C (en)
SE (2) SE7709944L (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI68005C (en) * 1980-09-30 1985-07-10 Rauma Repola Oy FOERFARANDE FOER TJOCKNING AV MASS ELLER SUSPENSION OCH SKIVFILTER FOER TILLAEMPNING AV FOERFARANDET
EP0103966B1 (en) * 1982-08-20 1989-03-15 Ab Celleco Rotatable filter assembly
CA1219530A (en) * 1982-12-22 1987-03-24 Rune H. Frykhult Rotatable filter assembly
FR2550463B1 (en) * 1983-08-08 1985-12-06 Moatti Georges FILTER PROVIDED WITH A CLEANING DEVICE
FR2567039B1 (en) * 1984-07-04 1989-05-26 Pechiney Aluminium VARIABLE THICKNESS SECTOR FOR ROTARY DISC FILTER
FI70526C (en) * 1984-12-03 1986-09-24 Enso Gutzeit Oy SKIVFILTER
SE451948B (en) * 1985-05-02 1987-11-09 Hedemora Ab FILTER FOR CONTINUOUS FILTERING UNDER PRESSURE OF A SUSPENSION
DE3528429A1 (en) * 1985-08-08 1987-02-12 Voith Gmbh J M DISC THICKER
SE460578B (en) * 1987-06-24 1989-10-30 Bjarne Nilsson DISC FILTER WITH DEVICE MAKES INCREASED FILTRATE DERIVATION
SE460579B (en) * 1987-06-24 1989-10-30 Bjarne Nilsson ROTATING FILTERS WITH OUTER FILTRATE CHANNELS
EP0307700B1 (en) * 1987-09-16 1992-03-04 Andreas Kufferath GmbH & Co. KG Disc concentrator
US5053123A (en) * 1989-04-17 1991-10-01 Ingersoll-Rand Company Adjustable valve for varying filtrate composition from filters
CA2151593C (en) * 1992-12-14 1999-02-23 Roger Haeffner Apparatus for filtering suspensions
US5344575A (en) * 1993-01-29 1994-09-06 Centre De Recherche Industrielle Du Quebec Apparatus and method for extracting liquid from a humid mass
AT403174B (en) * 1996-04-30 1997-11-25 Andritz Patentverwaltung Method of dewatering solids suspensions, and rotary filter for implementing the method
US6833077B2 (en) * 2001-04-23 2004-12-21 Gl&V Management Hungary Kft. Sequential swinging precoat removal and renewal system, filter so equipped and method
PT1401555E (en) * 2001-07-03 2009-02-05 Gl&V Man Hungary Kft Filter with sequential swinging precoat removal and renewal system.
FI20041518A (en) * 2004-11-25 2006-05-26 Andritz Oy Method and apparatus for treating mesa
EP1961475B1 (en) 2007-02-21 2020-06-17 Veolia Water Solutions & Technologies Support High pressure cleaning device
US7736526B2 (en) * 2008-10-03 2010-06-15 Thompson Industrial Services, Llc Method of filtering phosphate utilizing a rotary table filter or horizontal table filter
SE534913C2 (en) * 2010-06-16 2012-02-14 Rioks Patenter Ab Disc filter
FI123263B (en) 2011-04-29 2013-01-15 Metso Paper Inc Fasteners
FI123047B (en) 2011-04-29 2012-10-15 Metso Paper Inc Wheel filter shaft
FI9761U1 (en) 2011-05-27 2012-08-29 Metso Paper Inc Joint channel in disc filter
AT13141U1 (en) * 2011-05-27 2013-07-15 Metso Paper Inc Outlet for a disc filter
FI9810U1 (en) * 2011-06-22 2012-09-24 Metso Paper Inc Sealing of filtrate valve in disc filter
FI123655B (en) 2011-09-02 2013-08-30 Metso Paper Inc A disc filter and a method for feeding a pulp suspension into a disc filter
ES2927357T3 (en) * 2016-08-12 2022-11-04 Evoqua Water Tech Llc Dual Media Disc Filter Disc Filter Pre-Screen
CA3107179A1 (en) 2018-08-10 2020-02-13 Kadant Black Clawson Llc Disc filters and methods of operating disc filters
US11000791B2 (en) * 2019-03-06 2021-05-11 Veolia Water Solutions & Technologies Support Rotary disc filter having backwash guides

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE216292C (en) *
US2864503A (en) * 1958-12-16 Filtrate drainage system for rotary
US819004A (en) * 1906-01-02 1906-04-24 Peter Couper Paper-making apparatus.
US3193105A (en) * 1961-02-06 1965-07-06 Improved Machinery Inc Continuous disc filter
DE1988626U (en) * 1964-11-12 1968-07-04 Krauss Maffei Imp G M B H DEVICE FOR CONTINUOUS ADJUSTMENT OF FILTRATE SEPARATION ZONES ON THE CONTROL UNIT OF ROTARY FILTERS.
DE1536894A1 (en) * 1966-11-03 1970-05-27 Rainer Rimanek Device for the continuous adjustment of filtrate zones on the control element of rotary filters
US3591009A (en) * 1969-08-22 1971-07-06 Oscar Luthi Disc filter having filtrate directing means
US4032442A (en) * 1975-11-21 1977-06-28 Peterson Filters And Engineering Company By-pass and synchronized blow system and method for rotary vacuum filters
US4056473A (en) * 1976-05-25 1977-11-01 Bjarne Ivar Nilsson Rotary filter for concentrating fiber suspensions

Also Published As

Publication number Publication date
FI54060C (en) 1978-10-10
JPS5336078A (en) 1978-04-04
SE431405B (en) 1984-02-06
NO773148L (en) 1978-03-15
FR2364054A1 (en) 1978-04-07
DE2740350C2 (en) 1987-04-09
NO151848C (en) 1985-06-19
FI54060B (en) 1978-06-30
AT358382B (en) 1980-09-10
DE2740350A1 (en) 1978-03-16
FR2364054B1 (en) 1984-05-04
CA1098046A (en) 1981-03-24
NO144842B (en) 1981-08-17
NO144842C (en) 1981-11-25
JPS6110167B2 (en) 1986-03-28
NO151848B (en) 1985-03-11
BR7703607A (en) 1978-05-02
NO811439L (en) 1978-03-15
FI762626A (en) 1978-03-15
ATA636977A (en) 1980-01-15
US4136028A (en) 1979-01-23
SE8201842L (en) 1982-03-23

Similar Documents

Publication Publication Date Title
SE7709944L (en) FILTER PROCEDURE
SE8502122L (en) FILTER FOR CONTINUOUS FILTERING UNDER PRESSURE OF A SUSPENSION
US2377252A (en) Filtering apparatus
ATE122253T1 (en) FILTER SECTOR.
GB1390657A (en) Rotary drum filtering apparatus and unitary drainage elements therefor
SE0104306D0 (en) Filter sector for rotating disc filters
FR2371954A1 (en)
SE8405901D0 (en) DISC FILTER DEVICE
AT338087B (en) GRINDING DISCS FOR THE STATOR OR ROTOR OF A REFINER FOR GRINDING FIBROUS MATERIALS
ATE335529T1 (en) FILTER SECTOR FOR A ROTATING FILTER DISC
SE7707651L (en) DISC FILTER
GB1203817A (en) Filter drum of moulded construction
ES422495A1 (en) Filtering device
GB764911A (en) Improvements in and relating to filters and filtering elements
SE8003145L (en) DRUM FILTER FOR DRAINING SUSPENSIONS
US2095303A (en) Filtration of solid bearing liquids
FR2144064A5 (en) Edge filter element - with stands self-cleaning scraper wears better than wire-wound element
GB1521045A (en) Membrane filtration
GB733689A (en) Improvements in or relating to filters for fluids
FR2426489A2 (en) Rotating filter drum for slurry dewatering - incorporating a cake squeezing appts. and filter sheet cleaning arrangement
SU437517A1 (en) The method of automatic control of the filter
SU60360A1 (en) Elastic band for vacuum filter with perforated ribbed bearing surface
FI46534C (en) Filter cleaner for filtering and presenting fibrous sludge, especially pulp stock.
SU106987A1 (en) Automatic Disc Filter Press
SU1115778A1 (en) Disk vacuum filter

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 7709944-8